<template>
  <div class="container">

    <!-- 表单 -->
    <div class="form">
      <div class="title">
        授权登录
      </div>
      <div>
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
          <!-- 账号密码登录 -->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
              <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码"
              @keyup.enter.native="handleLogin">
              <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>

          <!-- 下方的登录按钮 -->
          <el-form-item style="width:100%;">
            <el-button :loading="loading" size="medium" type="primary" style="width:100%;"
              @click.native.prevent="getCode">
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
          </el-form-item>
        </el-form>
      </div>


      <!-- 图形验证码 -->
      <Verify ref="verify" :captcha-type="'blockPuzzle'" :img-size="{ width: '252px', height: '124px' }"
        @success="handleLogin" />

      <!-- footer -->
      <div class="footer">
        Copyright © 2020-{{ year }} 拾光工坊 All Rights Reserved.
      </div>
    </div>
  </div>
</template>

<script>
import {
  getPassword, getRememberMe,
  getUsername,
  removePassword,
  removeUsername,
  setPassword,
  setRememberMe,
  setUsername
} from "@/utils/auth";

import Verify from '@/components/Verifition/Verify';
import { getCaptchaEnable } from "@/utils/ruoyi";

export default {
  name: "ThirdLogin",
  components: {
    Verify
  },
  data () {
    return {

      year: new Date().getFullYear(),
      codeUrl: "",
      captchaEnable: true,
      loginForm: {
        loginType: "uname",
        username: "",
        password: "",
        rememberMe: false,
        captchaVerification: "",
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "账号不能为空" }
        ],
        password: [
          { required: true, trigger: "blur", message: "密码不能为空" }
        ],
      },
      loading: false,
      redirect: undefined,
      // 社交登录相关
      type: undefined,
      code: undefined,
      state: undefined,
    };
  },
  created () {
    this.getCookie();
    // 验证码开关
    this.captchaEnable = getCaptchaEnable();
    // 重定向地址
    this.redirect = this.getUrlValue('redirect');
    // 社交登录相关
    this.type = this.getUrlValue('type');
    this.code = this.$route.query.code;
    this.state = this.$route.query.state;

    // 尝试登录一下
    this.loading = true;
    this.$store.dispatch("SocialLogin", {
      code: this.code,
      state: this.state,
      type: this.type
    }).then(() => {
      this.$router.push({ path: this.redirect || "/" }).catch(() => { });
    }).catch(() => {
      this.loading = false;
    });
  },
  methods: {
    getCode () {
      // 情况一，未启用：则直接登录
      if (!this.captchaEnable) {
        this.handleLogin({})
        return;
      }

      // 情况二，已启用：则展示验证码；只有完成验证码的情况，才进行登录
      // 弹出验证码
      this.$refs.verify.show()
    },
    getCookie () {
      const username = getUsername();
      const password = getPassword();
      const rememberMe = getRememberMe();
      this.loginForm = {
        username: username ? username : this.loginForm.username,
        password: password ? password : this.loginForm.password,
        rememberMe: rememberMe ? getRememberMe() : false,
        loginType: this.loginForm.loginType,
      };
    },
    handleLogin (captchaParams) {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            setUsername(this.loginForm.username)
            setPassword(this.loginForm.password)
            setRememberMe(this.loginForm.rememberMe)
          } else {
            removeUsername()
            removePassword()
          }
          this.$store.dispatch("Login", {
            socialCode: this.code,
            socialState: this.state,
            socialType: this.type,
            // 账号密码登录
            username: this.loginForm.username,
            password: this.loginForm.password,
            captchaVerification: captchaParams.captchaVerification
          }).then(() => {
            this.$router.push({ path: this.redirect || "/" }).catch(() => { });
          }).catch(() => {
            this.loading = false;
            this.getCode()
          });
        }
      });
    },
    getUrlValue (key) {
      const url = new URL(decodeURIComponent(location.href));
      return url.searchParams.get(key);
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
@import "~@/assets/styles/login.scss";

.container {
  background-color: #293146;
}

.form {
  border: 0 solid #666;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.3);
  background-color: #fff;
  padding: 20px;
}

.title {
  text-align: center;
  font-size: 16px;
  margin-bottom: 20px;
  color: #000;
}

.footer {
  color: #fff;

}

.el-button--primary {
  background-color: #0960bd;
  border-color: #0960bd;
}

.el-button--primary:hover {
  background-color: #0960bd;
  opacity: 0.8;
}
</style>
